The letter will have full details but basically the gist is that there ` ll be a per Gigabyte overage charge dependent on plan with a maximum charge, for example here ` s the residential packages and overages,

The gist is that they thought they could get by with only six centralizers and that if there was any sign that the cement job didn't work they could run a test called a cement bond log that would show where there were gaps or channels in the cement and they could do a remedial cement job.